I am getting ready to use a SSD drive as my main drive. I have a SAMSUNG Spinpoint F3 HD103SJ 1TB 7200 RPM 32MB Cache SATA 3.0Gb as my main drive right now. Should I just keep the W7 OS that is on there now and use it as a backup or should I wipe the drive clean and use it for store only? Is there a certain program to run two OS with one PC? Also if I leave the W7 on the Samsung drive will I be able to move files from my new SSD drive to the Samsung? The SSD drive will have W7 also.

They both will be W7. Do I still need to do this dual booting installation if both hard drives have W7? Also will I be able to moving file from hard drive to hard drive normally if the both have W7 OS on them?